""
"regular string"
"fo\"o"
"""foo
   bar"""
"""foo -- comment
   bar"""

----------------------------------------------------

[
	["string", "\"\""],
	["string", "\"regular string\""],
	["string", "\"fo\\\"o\""],
	["string", "\"\"\"foo\r\n   bar\"\"\""],
	["string", "\"\"\"foo -- comment\r\n   bar\"\"\""]
]

----------------------------------------------------

Checks for strings.